US4436554A - High strength and high toughness welding material - Google Patents
High strength and high toughness welding material Download PDFInfo
- Publication number
- US4436554A US4436554A US06/437,886 US43788682A US4436554A US 4436554 A US4436554 A US 4436554A US 43788682 A US43788682 A US 43788682A US 4436554 A US4436554 A US 4436554A
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- United States
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- welding material
- welding
- strength
- quenching
- Prior art date
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- Expired - Lifetime
Links
- 238000003466 welding Methods 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 title claims abstract description 18
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 5
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 4
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 4
- 229910052742 iron Inorganic materials 0.000 claims abstract description 3
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 3
- 238000010791 quenching Methods 0.000 claims description 10
- 230000000171 quenching effect Effects 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000000137 annealing Methods 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 238000005496 tempering Methods 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000011572 manganese Substances 0.000 description 6
- 150000002739 metals Chemical class 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000011651 chromium Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 2
- 229910052787 antimony Inorganic materials 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- 238000009863 impact test Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
- B23K35/3066—Fe as the principal constituent with Ni as next major constituent
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12951—Fe-base component
- Y10T428/12958—Next to Fe-base component
Definitions
- Examples of conventional welding materials for use at temperatures as low as -90° C. are 3.5% nickel alloy steel and austenite stainless steel.
- welds with these materials offer low yield strengths of 30-55 Kgf/cm 2 , although they are durable at low temperatures, which precludes their use for rotary high-speed machinery which requires materials that can be used as welding materials in strong and durable states at low temperatures. Additional heat treatment-- quenching and tempering do not raise yield strength and impact value, VE-- 90 to permit such welds being used in parts subject to high r.p.m.
- the present invention relates to a welding material, hereinafter referred to as welding wire, and more particularly to a welding material which may be used at temperatures as low as -90° C. for a variety of welds of various machinery and tools.
- the welding material according to the present invention offers great strength durability, even when it is used in welds at -90° C.
- the inventors have developed a welding material that is stronger and more durable than conventional welds at -90° C., and have determined that
- the present invention is based on the above findings and provides a strong-- durable welding material characterized by containing the following elements in the weight percentage listed below.
- the percentage is by weight.
- C 0.05- 0.15%
- Si 0.25- 0.70%
- Mn 0.60- 1.80%
- Ni 4.5- 11.0%
- Cr 0.20- 1.20%
- Mo 0.20- 0.60%
- Ti 0.03- 0.12%
- Cr+ Mo from 0.40% to 0.030 ⁇ (Ni%) 2
- the impurities, P and S, that are unavoidable are limited to less than 0.010% and Cu less than 0.20%, and Sn, Sb and As less than 0.010%, and oxygen and nitrogen less than 100 ppm and the balance iron.
- Carbon is needed for raising the weld strength. For the reasons that proper strength can not be obtained if it is too low, and that cracks at high temperatures in the weldment are liable to develop if it is too low, it is in the range from 0.05- 0.15%.
- Silicon has a refining effect on the weld metal. If silicon is too low, the refining effect is not enough, and if it is too high, low temperature durability is reduced during quenching and tempering. For those reasons, silicon of 0.25- 0.70% is used.
- Mn has the same effect as silicon.
- manganese 0.60- 1.80% is employed.
- Ni raises the low temperature durability and strength. If it is below 4.5%, low temperature durability at -90° C. is insufficient in the weld metal that is subjected to quenching and tempering to 22 a yield strength of from 75- 100 Kgf/mm 2 . If Ni content is higher than 11%, the cost is no longer practical. The Ni content is therefore limited to the range of 4.5- 11%.
- Cr improves quenching, but its characteristics tend to reduced low temperature durability.
- the range of 0.20- 1.20% is considered to be preferable. If the content is lower than 0.20, the yield strength is low. If the content exceeds 1.20%, durability at -90° C. is reduced.
- Mo also improves the quenching characteristics, and it also maintains strength after tempering. A range of 0.20- 0.60% is recommended. If the Mo content is below 0.20%, the yield strength is low, and a content of over 0.60% offers no improved yield strength, only raising the alloy cost.
- Titanium is an important element for achieving stability in metallurgical reactions and in the arc during welding. If it is lower than 0.03% in weight, its deoxidizing effect and contribution to arc stability will not be evident, and if it is over 0.12% in weight, it lessens arc stability and durability of the weld metal, its content is limited in the range of 0.03- 0.12%.
- the unavoidable impurities, P, and S and Cu are likely to cause cracks to develop in the weld. It is therefore desirable to limit P and S contents to less than 0.010%, and Cu under 0.20%.
- Other impurities, Sn, Sb and As should be limited to less than 0.010%. Since oxygen and nitrogen reduce durability, content of each gas should be less than 100 ppm.
- Welding materials that are examples of the present invention with the above listed compositions are used as welding rods for gas-sealed arc welding, and the weld metals are subjected after welding to quenching and tempering.
- Welding wires of a diameter of 1.20 ⁇ with the chemical compositions of Table 1 were used for gas-sealed arc welding of a mild steel plate (16 mm thick ⁇ 300 mm wide ⁇ 700 mm long) (battered with the specimen wires) with 200-240 A electric current, 25-27 V voltage, and a welding speed of 25-30 cm/min, and (argon+2% O 2 ) for sealed-gas, and the weld was quenched at 860° C. ⁇ 25° C.
- the yield strength of the weld metal was determined by a tensile strength test at room temperature and the low temperature durability was determined by an impact test at -90° C. The results of the test are shown in Table 2. It is evident from Tables 1 and 2 that after quenching and tempering, a yield strength from 75- 100 Kgf/mm 2 can be obtained and sufficient low temperature durability over 28 kg/mm 2 at -90° C. is also obtainable.
- Table 3 lists the chemical composition of the weld metals obtained from the welding wires of Table 1. Oxygen included in the weld metals was from 200- 500 ppm, and nitrogen from 10- 50 ppm.
- TIG welding was applied to a mild steel plate (16 mm thick ⁇ 300 mm wide ⁇ 700 mm long) under the welding conditions below:
- Yield strengths of the weld metals produced by the above TIG welding after quenching and tempering as in Example 1 were obtained by a room temperature tensile strength test and their low temperature durability by an impact test at -90° C. Table 4 shows the results.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
- Laminated Bodies (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
A high strength and high toughness welding material containing: C: 0.05-0.15%, Si: 0.25-0.70%, Mn: 0.60-1.80%, Ni: 4.5-11.0%, Cr: 0.20-1.20%, Mo: 0.20-0.60%, Ti: 0.03-0.12%, Cr+Mo: from 0.40% to 0.030×(Ni%)2 by weight and the balance essentially iron.
Description
Examples of conventional welding materials for use at temperatures as low as -90° C. are 3.5% nickel alloy steel and austenite stainless steel.
Welds with these materials, however, offer low yield strengths of 30-55 Kgf/cm2, although they are durable at low temperatures, which precludes their use for rotary high-speed machinery which requires materials that can be used as welding materials in strong and durable states at low temperatures. Additional heat treatment-- quenching and tempering do not raise yield strength and impact value, VE-- 90 to permit such welds being used in parts subject to high r.p.m.
The present invention relates to a welding material, hereinafter referred to as welding wire, and more particularly to a welding material which may be used at temperatures as low as -90° C. for a variety of welds of various machinery and tools. The welding material according to the present invention offers great strength durability, even when it is used in welds at -90° C.
The inventors have developed a welding material that is stronger and more durable than conventional welds at -90° C., and have determined that
(1) Increased Ni content in steel increases durability at low temperatures.
(2) Addition of Cr and Mo increases the efficiency of the quenching and tempering steps.
(3) The Cr+ MO content are critical factors in achieving strength and durability.
The present invention is based on the above findings and provides a strong-- durable welding material characterized by containing the following elements in the weight percentage listed below. Hereinafter, the percentage is by weight. C: 0.05- 0.15%, Si: 0.25- 0.70%, Mn: 0.60- 1.80%, Ni: 4.5- 11.0%, Cr: 0.20- 1.20%, Mo: 0.20- 0.60%, Ti: 0.03- 0.12% and Cr+ Mo: from 0.40% to 0.030× (Ni%)2, and the impurities, P and S, that are unavoidable are limited to less than 0.010% and Cu less than 0.20%, and Sn, Sb and As less than 0.010%, and oxygen and nitrogen less than 100 ppm and the balance iron.
The reasons for specifying the amount of the component elements in the welding material according to the present invention are as follows.
Carbon is needed for raising the weld strength. For the reasons that proper strength can not be obtained if it is too low, and that cracks at high temperatures in the weldment are liable to develop if it is too low, it is in the range from 0.05- 0.15%.
Silicon has a refining effect on the weld metal. If silicon is too low, the refining effect is not enough, and if it is too high, low temperature durability is reduced during quenching and tempering. For those reasons, silicon of 0.25- 0.70% is used.
Mn has the same effect as silicon. For the same reasons as for silicon, manganese of 0.60- 1.80% is employed.
Ni raises the low temperature durability and strength. If it is below 4.5%, low temperature durability at -90° C. is insufficient in the weld metal that is subjected to quenching and tempering to 22 a yield strength of from 75- 100 Kgf/mm2. If Ni content is higher than 11%, the cost is no longer practical. The Ni content is therefore limited to the range of 4.5- 11%.
Cr improves quenching, but its characteristics tend to reduced low temperature durability. The range of 0.20- 1.20% is considered to be preferable. If the content is lower than 0.20, the yield strength is low. If the content exceeds 1.20%, durability at -90° C. is reduced.
Mo also improves the quenching characteristics, and it also maintains strength after tempering. A range of 0.20- 0.60% is recommended. If the Mo content is below 0.20%, the yield strength is low, and a content of over 0.60% offers no improved yield strength, only raising the alloy cost.
As for the above-mentioned chromium and molybdenum, if the total of both elements is increased, strength of the weld metal is increased, but low temperature durability is decreased. To meet both the strength and low temperature durability requirements, it is important that the total of both elements fall between 0.40% and 0.30× (Ni%)2 (0.40%≦Cr+Mo≦0.030×(Ni%)2).
Titanium is an important element for achieving stability in metallurgical reactions and in the arc during welding. If it is lower than 0.03% in weight, its deoxidizing effect and contribution to arc stability will not be evident, and if it is over 0.12% in weight, it lessens arc stability and durability of the weld metal, its content is limited in the range of 0.03- 0.12%.
The unavoidable impurities, P, and S and Cu are likely to cause cracks to develop in the weld. It is therefore desirable to limit P and S contents to less than 0.010%, and Cu under 0.20%. Other impurities, Sn, Sb and As should be limited to less than 0.010%. Since oxygen and nitrogen reduce durability, content of each gas should be less than 100 ppm.
Welding materials that are examples of the present invention with the above listed compositions are used as welding rods for gas-sealed arc welding, and the weld metals are subjected after welding to quenching and tempering.
Next, two examples of the present invention are presented below for detailed explanation of the present invention.
Welding wires of a diameter of 1.20 φ with the chemical compositions of Table 1 were used for gas-sealed arc welding of a mild steel plate (16 mm thick× 300 mm wide× 700 mm long) (battered with the specimen wires) with 200-240 A electric current, 25-27 V voltage, and a welding speed of 25-30 cm/min, and (argon+2% O2) for sealed-gas, and the weld was quenched at 860° C.± 25° C. The yield strength of the weld metal was determined by a tensile strength test at room temperature and the low temperature durability was determined by an impact test at -90° C. The results of the test are shown in Table 2. It is evident from Tables 1 and 2 that after quenching and tempering, a yield strength from 75- 100 Kgf/mm2 can be obtained and sufficient low temperature durability over 28 kg/mm2 at -90° C. is also obtainable.
Table 3 lists the chemical composition of the weld metals obtained from the welding wires of Table 1. Oxygen included in the weld metals was from 200- 500 ppm, and nitrogen from 10- 50 ppm.
TABLE 1
__________________________________________________________________________
(weight %)
Chemical Component
No. C Si Mn P S Ni Cr Mo Cu Sn Sb As Ti
__________________________________________________________________________
1 Other than present invention
0.07
0.41
1.53
0.003
0.006
2.8
0.7
0.7
0.17
0.002
0.006
0.001
0.04
2 " 0.03
0.38
1.30
0.008
0.008
4.52
0.10
0.30
0.18
0.003
0.008
0.002
0.08
3 Present invention
0.07
0.45
1.25
0.006
0.003
4.53
0.25
0.25
0.15
0.004
0.008
0.001
0.07
4 " 0.10
0.42
1.00
0.008
0.006
4.60
0.30
0.30
0.15
0.004
0.005
0.001
0.03
5 Other than present invention
0.07
0.45
1.20
0.006
0.003
4.53
0.70
0.5
0.12
0.002
0.004
0.001
0.05
6 " 0.06
0.35
0.90
0.005
0.002
6.48
0.20
0.10
0.13
0.002
0.003
0.002
0.06
7 Present invention
0.08
0.48
1.22
0.004
0.003
6.52
0.25
0.32
0.12
0.003
0.004
0.001
0.06
8 " 0.10
0.47
0.95
0.005
0.004
6.48
0.82
0.40
0.14
0.003
0.005
0.002
0.09
9 Other than present invention
0.10
0.45
1.20
0.006
0.002
6.4
1.26
0.50
0.12
0.002
0.004
0.001
0.06
10 " 0.08
0.38
0.95
0.003
0.004
8.5
0.11
0.21
0.12
0.003
0.005
0.001
0.07
11 Present invention
0.10
0.38
1.20
0.005
0.004
8.5
0.36
0.22
0.14
0.001
0.005
0.002
0.12
12 " 0.12
0.32
1.12
0.008
0.006
8.4
0.84
0.48
0.16
0.001
0.005
0.001
0.05
13 " 0.09
0.36
1.24
0.004
0.003
8.5
1.20
0.58
0.15
0.002
0.007
0.002
0.07
14 Other than present invention
0.09
0.35
1.10
0.005
0.004
8.5
1.30
0.65
0.16
0.002
0.007
0.001
0.10
15 " 0.03
0.34
1.09
0.004
0.003
10.6
0.02
0.05
0.08
0.001
0.003
0.001
0.09
16 Present invention
0.07
0.39
1.20
0.003
0.003
10.6
0.31
0.30
0.12
0.002
0.004
0.001
0.10
17 " 0.10
0.40
1.22
0.002
0.005
10.7
1.05
0.49
0.14
0.001
0.001
0.000
0.10
18 Other than present invention
0.06
0.40
1.25
0.004
0.002
10.5
1.50
0.38
0.09
0.001
0.003
0.001
0.08
__________________________________________________________________________
TABLE 2
______________________________________
Absorbed Energy
Yield strength
VE - 90
No. (Kgf/mm.sup.2)
(Kgf · m)
______________________________________
1 96 0.7
2 54 6.1
3 75 4.0
4 85 3.2
5 97 1.9
6 65 5.0
7 97 3.8
8 98 3.2
9 99 2.0
10 68 5.5
11 97 4.2
12 98 3.8
13 98 2.9
14 98 2.0
15 65 9.5
16 96 5.4
17 98 3.8
18 100 2.0
______________________________________
TABLE 3
__________________________________________________________________________
(Weight %)
No. C Si Mn P S Ni Cr Mo Cu Sn Sb As Ti
__________________________________________________________________________
1 Other than present invention
0.07
0.35
1.17
0.001
0.006
2.66
63 0.49
0.16
0.001
0.003
0.001
0.02
2 " 0.04
0.25
1.22
0.002
0.003
4.50
0.08
0.30
0.15
0.002
0.005
0.001
0.02
3 Present invention
0.07
0.30
1.00
0.005
0.003
4.51
0.24
0.22
0.15
0.003
0.005
0.001
0.03
4 " 0.12
0.35
0.98
0.006
0.004
4.55
0.28
0.30
0.14
0.003
0.005
0.001
0.01
5 Other than present invention
0.08
0.30
0.99
0.003
0.005
4.52
0.70
0.49
0.12
0.002
0.004
0.001
0.01
6 " 0.06
0.32
0.88
0.005
0.002
6.40
0.19
0.10
0.13
0.001
0.003
0.001
0.02
7 Present invention
0.08
0.40
0.99
0.004
0.002
6.48
0.24
0.31
0.12
0.002
0.004
0.001
0.01
8 " 0.09
0.40
0.90
0.005
0.004
6.43
0.80
0.40
0.14
0.002
0.005
0.001
0.02
9 Other than present invention
0.10
0.43
1.10
0.006
0.002
6.40
1.26
0.50
0.12
0.001
0.004
0.001
0.02
10 " 0.08
0.35
0.90
0.003
0.004
8.5
0.11
0.22
0.12
0.002
0.005
0.001
0.01
11 Present invention
0.07
0.30
0.99
0.003
0.005
8.6
0.35
0.22
0.12
0.002
0.001
0.001
0.03
12 " 0.12
0.30
1.05
0.005
0.003
8.4
0.82
0.49
0.14
0.005
0.002
0.001
0.01
13 " 0.10
0.36
1.12
0.004
0.003
8.5
1.15
0.59
0.15
0.001
0.005
0.001
0.01
14 Other than present invention
0.09
0.32
1.02
0.005
0.003
8.45
1.28
0.66
0.15
0.001
0.006
0.001
0.02
15 " 0.03
0.30
0.85
0.003
0.002
10.8
0.01
0.05
0.09
0.001
0.003
0.001
0.02
16 Present invention
0.06
0.29
0.95
0.003
0.003
10.5
0.30
0.30
0.12
0.002
0.004
0.001
0.02
17 " 0.09
0.30
1.02
0.002
0.005
10.8
1.00
0.48
0.13
0.001
0.001
0.000
0.02
18 Other than present invention
0.06
0.30
0.99
0.004
0.002
10.5
1.50
0.38
0.09
0.001
0.003
0.001
0.02
__________________________________________________________________________
TIG welding was applied to a mild steel plate (16 mm thick ×300 mm wide ×700 mm long) under the welding conditions below:
______________________________________
Tungsten diameter 3.2 φ
Wire diameter 1.2 φ
Wires used are No. 6, 7, 8 and 9
of Table 1 of embodiment 1
TIG current 260-280 A
TIG voltage 12 V
Welding speed 200 mm/min
Wire feeding speed 1000 mm/min
Sealed-gas Ar. 25% + He 75%
Flow rate of sealed-gas
30 l/min
______________________________________
Yield strengths of the weld metals produced by the above TIG welding after quenching and tempering as in Example 1 were obtained by a room temperature tensile strength test and their low temperature durability by an impact test at -90° C. Table 4 shows the results.
It is evident from Table 4 that with the welding materials of the present invention, yield strength and low temperature durability that are about the same as in Example 1 can be obtained.
The chemical composition of those weld metals in Example 2 are shown in Table 5.
TABLE 4
______________________________________
Absorbed Energy
Yield strength
VE - 90
No. (Kgf/mm.sup.2)
(Kgf · m)
______________________________________
6 66 6.0
7 96 4.0
8 98 3.8
9 99 2.2
______________________________________
TABLE 5
__________________________________________________________________________
(Weight %)
Chemical Compostion
No.
Remark C Si Mn P S Ni Cr Mo Cu Sn Sb As Ti O.sub.2
N.sub.2
__________________________________________________________________________
6 Other than present
0.06
0.33
0.85
0.004
0.002
6.49
0.20
0.11
0.13
0.002
0.003
0.002
0.03
0.0045
0.0026
invention
7 Present invention
0.08
0.45
1.15
0.003
0.003
6.52
0.24
0.32
0.12
0.003
0.004
0.001
0.03
0.0038
0.0035
8 " 0.10
0.40
0.90
0.004
0.004
6.49
0.80
0.40
0.13
0.003
0.004
0.001
0.04
0.0040
0.0040
9 Other than present
0.10
0.40
1.10
0.005
0.002
6.4
1.24
0.50
0.12
0.001
0.004
0.001
0.03
0.0040
0.0028
invention
__________________________________________________________________________
Claims (1)
1. A high strength and high toughness steel welding material which has been modified by subjecting a welding portion welded with said welding material to quenching and annealing said welding material consisting essentially of: C: 0.05-0.15%, Si: 0.25-0.70%, Mn: 0.60-1.80%, Cu: an effective amount up to 0.20%, Ni: 4.5-11.0%, Cr: 0.20-1.20%, Mo: 0.20-0.60%, Ti: 0.03-0.12%, and the balance being substantially iron and wherein the Cr+Mo is from 0.40% to 0.030×(Ni%)2 by weight, said welding material having a yield strength ranging from 75-100 Kgf/mm2 and having a low temperature durability of over 28 kg/mm2 at -90° C.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56-183722 | 1981-11-18 | ||
| JP56183722A JPS5886996A (en) | 1981-11-18 | 1981-11-18 | Welding material of high strength and high toughness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US4436554A true US4436554A (en) | 1984-03-13 |
Family
ID=16140811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US06/437,886 Expired - Lifetime US4436554A (en) | 1981-11-18 | 1982-10-29 | High strength and high toughness welding material |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4436554A (en) |
| JP (1) | JPS5886996A (en) |
| CA (1) | CA1198613A (en) |
| DE (1) | DE3241818A1 (en) |
| FR (1) | FR2516422B1 (en) |
| IT (1) | IT1153077B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4561888A (en) * | 1982-11-02 | 1985-12-31 | Kabushiki Kaisha Kobe Seiko Sho | Welding wire for use in submerged arc welding of Cr-Mo steels |
| US4817859A (en) * | 1986-09-24 | 1989-04-04 | Bbc Brown Boveri Ag | Method of joining nodular cast iron to steel by means of fusion welding |
| US5124529A (en) * | 1990-02-22 | 1992-06-23 | Kabushiki Kaisha Kobe Seiko Sho | Flux-cored wire for welding stainless steel |
| US6107595A (en) * | 1995-07-19 | 2000-08-22 | Inland Steel Company | Method for resistance welding with dilution metal and product thereof |
| US6193145B1 (en) * | 1995-12-18 | 2001-02-27 | Framatome | Method for joining two parts of different kinds by heterogeneous butt welding, and uses thereof |
| US20120241420A1 (en) * | 2009-12-04 | 2012-09-27 | Tadashi Ishikawa | Butt welding joint using high-energy density beam |
| EP2529876A4 (en) * | 2010-01-27 | 2013-06-12 | Kobe Steel Ltd | Welding metal having excellent low-temperature toughness and drop-weight characteristics |
| CN103350290A (en) * | 2013-06-21 | 2013-10-16 | 江苏省沙钢钢铁研究院有限公司 | Electroslag welding solid welding wire for low-temperature steel plate |
| EP3156171A1 (en) * | 2015-10-14 | 2017-04-19 | CRS Holdings, Inc. | High strength welding consumable based on a 10% nickel steel metallurgical system |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0748119Y2 (en) * | 1992-05-20 | 1995-11-08 | フランスベッド株式会社 | Wake-up bed equipment |
| RU2391192C1 (en) * | 2008-09-29 | 2010-06-10 | Федеральное Государственное Унитарное Предприятие "Центральный Научно-Исследовательский Институт Конструкционных Материалов "Прометей" (Фгуп "Цнии Км "Прометей") | Welding material for sublayer to be used in antirust resurfacing of steel |
| JP5457920B2 (en) | 2010-04-09 | 2014-04-02 | 株式会社神戸製鋼所 | Weld metal with excellent low temperature toughness and drop characteristics |
| JP6255284B2 (en) * | 2014-03-10 | 2017-12-27 | 株式会社神戸製鋼所 | Solid wire for gas metal arc welding |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3290128A (en) | 1966-02-21 | 1966-12-06 | United States Steel Corp | Steel weldments |
| US3656943A (en) | 1967-11-13 | 1972-04-18 | Westinghouse Electric Corp | Method of welding and material for use in practicing method |
| US3759706A (en) | 1972-02-23 | 1973-09-18 | Us Navy | High toughness alloy ateel with improved weldability |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3162751A (en) * | 1962-09-24 | 1964-12-22 | Robbins Lawrence | Welding electrode |
| US3368887A (en) * | 1965-08-17 | 1968-02-13 | Union Carbide Corp | Consumable wire for improving mechanical properties of weld metal |
| US3585011A (en) * | 1968-05-13 | 1971-06-15 | Republic Steel Corp | Article welded by ferritic alloy |
| GB1288298A (en) * | 1968-12-28 | 1972-09-06 | ||
| US3667924A (en) * | 1969-12-30 | 1972-06-06 | Teledyne Inc | Stress relieved welded steel composite |
| US3656918A (en) * | 1969-12-30 | 1972-04-18 | Teledyne Inc | Composite welded ferrous article |
-
1981
- 1981-11-18 JP JP56183722A patent/JPS5886996A/en active Pending
-
1982
- 1982-10-29 US US06/437,886 patent/US4436554A/en not_active Expired - Lifetime
- 1982-11-11 DE DE19823241818 patent/DE3241818A1/en active Granted
- 1982-11-18 IT IT24324/82A patent/IT1153077B/en active
- 1982-11-18 FR FR8219286A patent/FR2516422B1/en not_active Expired
- 1982-11-18 CA CA000415809A patent/CA1198613A/en not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3290128A (en) | 1966-02-21 | 1966-12-06 | United States Steel Corp | Steel weldments |
| US3656943A (en) | 1967-11-13 | 1972-04-18 | Westinghouse Electric Corp | Method of welding and material for use in practicing method |
| US3759706A (en) | 1972-02-23 | 1973-09-18 | Us Navy | High toughness alloy ateel with improved weldability |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4561888A (en) * | 1982-11-02 | 1985-12-31 | Kabushiki Kaisha Kobe Seiko Sho | Welding wire for use in submerged arc welding of Cr-Mo steels |
| US4817859A (en) * | 1986-09-24 | 1989-04-04 | Bbc Brown Boveri Ag | Method of joining nodular cast iron to steel by means of fusion welding |
| US5124529A (en) * | 1990-02-22 | 1992-06-23 | Kabushiki Kaisha Kobe Seiko Sho | Flux-cored wire for welding stainless steel |
| US6107595A (en) * | 1995-07-19 | 2000-08-22 | Inland Steel Company | Method for resistance welding with dilution metal and product thereof |
| US6193145B1 (en) * | 1995-12-18 | 2001-02-27 | Framatome | Method for joining two parts of different kinds by heterogeneous butt welding, and uses thereof |
| US9352424B2 (en) * | 2009-12-04 | 2016-05-31 | Nippon Steel & Sumitomo Metal Corporation | Butt welding joint using high-energy density beam |
| US20120241420A1 (en) * | 2009-12-04 | 2012-09-27 | Tadashi Ishikawa | Butt welding joint using high-energy density beam |
| EP2529876A4 (en) * | 2010-01-27 | 2013-06-12 | Kobe Steel Ltd | Welding metal having excellent low-temperature toughness and drop-weight characteristics |
| KR101418662B1 (en) * | 2010-01-27 | 2014-07-14 | 가부시키가이샤 고베 세이코쇼 | Welding metal having excellent low-temperature toughness and drop-weight characteristics |
| US8932415B2 (en) | 2010-01-27 | 2015-01-13 | Kobe Steel, Ltd. | Welding metal having excellent low-temperature toughness and drop-weight characteristics |
| CN103350290A (en) * | 2013-06-21 | 2013-10-16 | 江苏省沙钢钢铁研究院有限公司 | Electroslag welding solid welding wire for low-temperature steel plate |
| EP3156171A1 (en) * | 2015-10-14 | 2017-04-19 | CRS Holdings, Inc. | High strength welding consumable based on a 10% nickel steel metallurgical system |
| US10384315B2 (en) | 2015-10-14 | 2019-08-20 | Crs Holdings, Inc. | High strength welding consumable based on a 10% nickel steel metallurgical system |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2516422A1 (en) | 1983-05-20 |
| IT1153077B (en) | 1987-01-14 |
| CA1198613A (en) | 1985-12-31 |
| DE3241818C2 (en) | 1988-02-25 |
| DE3241818A1 (en) | 1983-06-01 |
| FR2516422B1 (en) | 1987-07-24 |
| JPS5886996A (en) | 1983-05-24 |
| IT8224324A0 (en) | 1982-11-18 |
| IT8224324A1 (en) | 1984-05-18 |
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